Percona 的「Optimizing Percona XtraDB Cluster for write hotspots」這篇說明了在 Galera Cluster 上發生多個 transaction 衝突時的處理方式。 不過解法是早就已經知道的方法，也就是把寫入都丟到同一台上處理： So what are your options with PXC when the workload has write hotspots? The most obvious one is to write on a single node: then you … Continue reading →